Storm Babet will cover the UK in "impactful" rain this week, the Met Office has warned.
Norfolk has been included in a yellow alert for rain lasting from 6am on Thursday until 6am on Saturday.
People have been told to expect flooding, power cuts and travel disruption during the storm, which is the second of the season after Agnes, as gale-force winds may make driving dangerous.
Grahame Madge, a Met Office spokesman, said: "From tomorrow morning (Thursday), Storm Babet will bring increasing impacts to the UK, beginning in the south and west and then moving east.
"Coastal residents and visitors are being advised to take extra caution."
Here is an hour-by-hour forecast of what people in Norfolk can expect from Storm Babet.
Thursday, October 19
Thursday is set to be rather cloudy with some bright or sunny spells possible.
Scattered showers will fall across the county and will get heavy and thundery in some coastal areas.
Temperatures will peak at 18C and fall to 13C overnight.
Friday, October 20
On Friday, showers are expected to last longer and be largely heavier than on Thursday.
READ MORE: Storm Babet: How badly will the storm hit Norfolk this week?
It will also be windier than Thursday, with gusts reaching 42mph in Cromer.
Temperatures will see highs of 14C and lows of 11C.
Saturday, October 21
Rain will still fall over most of the county at points on Saturday but will not fall as heavily as on Friday.
It will be slightly chillier though, with temperatures peaking at 13C and falling to 9C.
Coastal areas will face gusts of wind up to 28mph.
Sunday, October 22
Towards the end of the weekend, conditions are set to be brighter and drier with winds easing off.
There may be some cloud coverage in the morning but this should clear by the early afternoon.
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